You can open a ticket here - https://blockchain.zendesk.com/. We reply within hours when you do. Keeping tabs on forum posts isn't the best way to interact with users, but it is still be beneficial for this thread to exist. Also, our transaction fees are based on this - https://en.bitcoin.it/wiki/Transaction_fees. The minimum fee cannot be lowered until the protocol is changed.

Hi, I have a question about your API (https://blockchain.info/api/blockchain_api). I often get the HTTP 429 Too many requests response. I use your API to parse the blockchain. I didn't find any API usage limits on your website but apparently I'm successful in hitting them. Could you please tell me how many requests I'm allowed to do per second or minute?

Hi, I have a question about your API (https://blockchain.info/api/blockchain_api). I often get the HTTP 429 Too many requests response. I use your API to parse the blockchain. I didn't find any API usage limits on your website but apparently I'm successful in hitting them. Could you please tell me how many requests I'm allowed to do per second or minute?

Hi, I have a question about your API (https://blockchain.info/api/blockchain_api). I often get the HTTP 429 Too many requests response. I use your API to parse the blockchain. I didn't find any API usage limits on your website but apparently I'm successful in hitting them. Could you please tell me how many requests I'm allowed to do per second or minute?

Hello!I do not get any text messages with code from your website, therefore I can not get into my wallet, I use SMS Two Factor Authentication.Please note, up to yesterday everything was fine, no delays, logged successfully always. What should I do now? I have sent request via support desk but still no response, also I would be grateful to know why is this happening? Neither in Google nor in FAQs I did not find any answers on this issue. Maybe the problem on the side of my mobile operator? But I get the sms without problems from any other services. Yesterday evening it wrote me that my wallet is locked due to max login attempts, cuz I didnt get text messages, today I try to login in again and it wrote me something that I reach maximum sms limits. What does that mean? When this sms limit is updated again? And the most important question, how do I login to my wallet?

We use Receive Payments API to generate bitcoin addresses and forward bitcoin donations from them to recipients without touching the money ourselves (see http://coingiving.com/). It worked nicely & instantly, thanks for your service!

But recently one of our users reported that he donated 0.001 btc to 17XRua8j8akFzUoqoe98SfaYy3DhkD34ds and his donation was not forwarded immediately to recipient (16fQZ5zND7jGPxBubWhBvVZiNXjTb5w1zK).

Could you please confirm that the address 17XRua8j8akFzUoqoe98SfaYy3DhkD34ds belongs to blockchain.info and 0.001 btc will be sent to 16fQZ5zND7jGPxBubWhBvVZiNXjTb5w1zK?

Hello!I do not get any text messages with code from your website, therefore I can not get into my wallet, I use SMS Two Factor Authentication.Please note, up to yesterday everything was fine, no delays, logged successfully always. What should I do now? I have sent request via support desk but still no response, also I would be grateful to know why is this happening? Neither in Google nor in FAQs I did not find any answers on this issue. Maybe the problem on the side of my mobile operator? But I get the sms without problems from any other services. Yesterday evening it wrote me that my wallet is locked due to max login attempts, cuz I didnt get text messages, today I try to login in again and it wrote me something that I reach maximum sms limits. What does that mean? When this sms limit is updated again? And the most important question, how do I login to my wallet?

The cool thing about this service is that it is theoretically possible to use the data you (should have) downloaded and tucked away to re-claim your funds using Multibit (I think) if you cannot log in or get support. This would be the case if, say, Blockchain.info were shut down by the authorities and their servers and data confiscated.

If you resort to this method of getting your money back, it would be interesting to know how it goes.

I think it would be good to have a feature to be able to contest public wallet descriptions, or at least remove this one, as it has also led to several news articles stating things like "BTC worth 92 Million USD stolen from Black Market", which is probably wrong, and while it is not Blockchains job to help lazy journalists, being able to clear things like this might be in everybodys interest.

It should be opt-in only. The only way to tag an address should be by signing an OTP with the address' private key. I don't remember 100% of bitcointalk or #bitcoin-otc users approving of our addresses being scraped into the db. Please purge all tags for now.

It should be opt-in only. The only way to tag an address should be by signing an OTP with the address' private key. I don't remember 100% of bitcointalk or #bitcoin-otc users approving of our addresses being scraped into the db. Please purge all tags for now.

I agree, cause one of my larger addresses is actually tag incorrectly as being part of something that it isn't and I can't speak up cause I don't want my privacy to be compromised. Puik tagging addresses is horrible it is like the wild west of domain tagging.

It should be opt-in only. The only way to tag an address should be by signing an OTP with the address' private key. I don't remember 100% of bitcointalk or #bitcoin-otc users approving of our addresses being scraped into the db. Please purge all tags for now.

I agree, cause one of my larger addresses is actually tag incorrectly as being part of something that it isn't and I can't speak up cause I don't want my privacy to be compromised. Puik tagging addresses is horrible it is like the wild west of domain tagging.

If Piuk didn't do something like this, someone else would.

There is nothing "official" about this list of tags. Anyone that treats it that way is foolish. Anyone can claim that addresses are owned by anyone they want. Some people seem to take pleasure in that, I don't understand why.

Here's a suggestion...

Use a new address for every transaction. Then tags like this quickly become far less interesting.

The quality of posts has dropped to such a low level that all users who are participating in a paid signature campaign are added to my ignore list. If you'd like a copy of the list to improve your browsing experience, you can find it here: https://bitcointalk.org/index.php?topic=973843.0 (Updated 2016-1-4)

It should be opt-in only. The only way to tag an address should be by signing an OTP with the address' private key. I don't remember 100% of bitcointalk or #bitcoin-otc users approving of our addresses being scraped into the db. Please purge all tags for now.

I agree, cause one of my larger addresses is actually tag incorrectly as being part of something that it isn't and I can't speak up cause I don't want my privacy to be compromised. Puik tagging addresses is horrible it is like the wild west of domain tagging.

If Piuk didn't do something like this, someone else would.

There is nothing "official" about this list of tags. Anyone that treats it that way is foolish. Anyone can claim that addresses are owned by anyone they want. Some people seem to take pleasure in that, I don't understand why.

Here's a suggestion...

Use a new address for every transaction. Then tags like this quickly become far less interesting.

Ah the appeal to douchebaggery. I'd call out every "someone else" too.

I analogize it to ham radio sites with callsign lookups like QRZ.com; pulling data from the FCC ULS database, and putting ads on it.

OTC WoT is as close to "official" as you can get, and so is anything pulling from it, other than a typical search engine. Pretty much the same for BCT profile/sig addresses, unless non-greedy people put some other entity's donation address.

Seems a tad overkill to make personal tipping addresses rotate off a MPK on a separate website.

It should be opt-in only. The only way to tag an address should be by signing an OTP with the address' private key. I don't remember 100% of bitcointalk or #bitcoin-otc users approving of our addresses being scraped into the db. Please purge all tags for now.

I agree, cause one of my larger addresses is actually tag incorrectly as being part of something that it isn't and I can't speak up cause I don't want my privacy to be compromised. Puik tagging addresses is horrible it is like the wild west of domain tagging.

If Piuk didn't do something like this, someone else would.

There is nothing "official" about this list of tags. Anyone that treats it that way is foolish. Anyone can claim that addresses are owned by anyone they want. Some people seem to take pleasure in that, I don't understand why.

Here's a suggestion...

Use a new address for every transaction. Then tags like this quickly become far less interesting.

Also puik's site is picked up by new outlets and other places, is that makes it unofficial official. So while someone else could easily do this, his site has a huge online presence. So sadly his success has made this feature just a troll feature.

I think I spotted quite a serious error at blockchain.info (and two smaller unrelated issues):

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First, a Just-Dice customer was asking why his withdrawal hadn't confirmed after several hours, despite having a suitable transaction fee included. The txid is b1d48276ed55db3be5c38d4939eff11e5669ec41293e06851bc92162c1b64af3.

Edit2: even worse, an output of the transaction which is confirmed but which blockchain.info thinks isn't has been spent in a confirmed transaction, resulting in this mess (note the red 'u' on one of the inputs):

A 3rd issue, that I often hear from customers, is that quite often when they withdraw, the unconfirmed transaction doesn't show up in their blockchain.info wallet. It shows up in every bitcoin-qt wallet - I can "getrawtransaction" on it, and see that it has propagated all over the place, but it doesn't show up when I search for it on blockchain.info. If I wait for the transaction to confirm, then it shows up on blockchain.info, and if the customer is really impatient, I can "getrawtransaction" on any bitcoin-qt node and paste the output into https://blockchain.info/pushtx - and then it shows up as an unconfirmed transaction. This problem pops up every few days for me, where blockchain.info fails to notice unconfirmed transactions that are flying around the network.

Ok all tag links must now be verified by a moderator before being displayed on the site. The moderation rules will now be a bit stricter, any links should provide context for the purpose of that address which would be useful to other users e.g. "Wikipedia Donation Address" linking to wikipedia.org = good, "This Address Scammed Me!" linking to reddit = bad.

You can now also submit tags verified with a signed message, rather than a link, which will be approved immediately. Blockchain wallet users can do this through the wallet ui label address function.